61200622019 has 2 divisors, whose sum is σ = 61200622020. Its totient is φ = 61200622018.

The previous prime is 61200621991. The next prime is 61200622123. The reversal of 61200622019 is 91022600216.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61200622019 is a prime.

It is a super-2 number, since 2×61200622019² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 61200621982 and 61200622000.

It is not a weakly prime, because it can be changed into another prime (61200622519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30600311009 + 30600311010.

It is an arithmetic number, because the mean of its divisors is an integer number (30600311010).

Almost surely, 2^61200622019 is an apocalyptic number.

61200622019 is a deficient number, since it is larger than the sum of its proper divisors (1).

61200622019 is an equidigital number, since it uses as much as digits as its factorization.

61200622019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 61200622019 in words is "sixty-one billion, two hundred million, six hundred twenty-two thousand, nineteen".